I don't believe in the Quran because...
1) I don't believe in any book which purports to be the word of any god, which is in fact written by humans.
Many people - mainly the silent, thinking, peaceful minority - share the same view as me. If anyone believes that..erm..allah..had anything to do with it, SHOW US THE EVIDENCE - the onus is on you people to do so, not on anyone who doesn't adhere to this creed.
2) Even if I chose to believe in such a book, the Quran would be an odd one for me to believe in. It's written in Arabic and seemingly no-one, even of its supposed scholars, can entirely agree on a plethora of things in it.
Why should I believe in an ancient, contradiction-ridden book about a god which was most likely to have been invented by an illiterate desert trader from the 6th century?
If I see the sun and birds, I must believe the Quran??
Err, no I don't. Again, I think you'd better argue your point more because it isn't self-evident. Also, the Quran was a book, I thought, whether divinely inspired or not. Man-made and the teensiest bit smaller than the universe at present?
So, it's part of the universe, yes, but not the same thing, no?
The Quran is the last chance, eh? So allah's patience has run out, has it? Or can't he get another prophet together? Or even appear him/her/itself?
Sounds like America - the USA I think you mean - is pretty important to you (use of 'we' etc.) I wouldn't have such blind faith in this either. USA doesn't always help those countries in need - not really doing a lot with Mugabe, eh? Didn't really stop the Chinese swallowing Tibet, eh? - and often sides with the aggressor or even does the aggressing itself.
It has tended to walk into Central America whenever it feels like it, has done everything possible to choke Cuba - and has still failed - and gets involved in all sorts of projects ostensibly to control oil, sell arms and generally colonise.
I have no particular patriotism myself and there have been worse prime nations in the world than the US, but it'd be remiss if the simplistic view expressed remained unchallenged.